NEET Exam  >  NEET Questions  >  1g H2 gas expand at STP to occupy double of i... Start Learning for Free
1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ?
Most Upvoted Answer
1g H2 gas expand at STP to occupy double of its original volume. The w...
(d), Work done = PdV = nRTn=0.5T = 273 KR = 2 K/CalBoth, temperature and pressure are constant, we cannot conclude that the process is isothermal or isobaric.
Community Answer
1g H2 gas expand at STP to occupy double of its original volume. The w...
Given:
- Initial volume of H2 gas (V1) = 1 g
- Final volume of H2 gas (V2) = 2 * V1
- Initial pressure of H2 gas (P1) = 1 atm (STP conditions)
- Final pressure of H2 gas (P2) = P1 (since the temperature is constant)
- Work done during the expansion process = ?

Formula for work done:
The work done during an isothermal expansion or compression process can be calculated using the formula:
Work = -P * ΔV

Where:
P is the pressure of the gas
ΔV is the change in volume of the gas (V2 - V1)

Solution:

Step 1: Calculate the change in volume (ΔV)
Since the final volume is double the initial volume, we have:
ΔV = V2 - V1
= 2 * V1 - V1
= V1

Step 2: Calculate the work done using the formula:
Work = -P * ΔV

Since the pressure remains constant during the process, we can substitute P1 for P:
Work = -P1 * ΔV

Step 3: Convert the work done into calories
1 calorie = 4.18 joules

We know that 1 atm = 101.3 J
Therefore, 1 cal = 101.3 J / 4.18
= 24.27 J

So, the work done in calories can be calculated as:
Work (cal) = Work (J) / 24.27

Substituting the values, we get:
Work (cal) = -P1 * ΔV / 24.27

Step 4: Substitute the given values to calculate the final result:
P1 = 1 atm
ΔV = V1 = 1 g

Work (cal) = -1 atm * 1 g / 24.27

Simplifying the expression, we get:
Work (cal) = -0.0412 cal

Since work cannot be negative, we take the absolute value:
Work (cal) = 0.0412 cal

Answer:
The work done during the expansion process is approximately 0.0412 calories.
Therefore, the correct answer is not provided in the options given.
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
Explore Courses for NEET exam

Top Courses for NEET

1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ?
Question Description
1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about 1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ?.
Solutions for 1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of 1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ? defined & explained in the simplest way possible. Besides giving the explanation of 1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ?, a detailed solution for 1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ? has been provided alongside types of 1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ? theory, EduRev gives you an ample number of questions to practice 1g H2 gas expand at STP to occupy double of its original volume. The work done during the process is a. 260cal b. 180cal c. 130cal d. 270cal ? tests, examples and also practice NEET tests.
Explore Courses for NEET exam

Top Courses for NEET

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev