JEE Exam  >  JEE Questions  >  A 150 W heater was placed in 1 kg of methanol... Start Learning for Free
A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is?
Most Upvoted Answer
A 150 W heater was placed in 1 kg of methanol and turned on exactly fo...
Calculation of Molar Heat Capacity of Methanol


Formula Used

The formula used to calculate the molar heat capacity is:

Cp = Q/mΔT

Where,
Cp = molar heat capacity of the substance
Q = heat energy supplied
m = mass of the substance
ΔT = change in temperature

Calculation

Given,
Power of the heater (P) = 150 W
Time for which heater was turned on (t) = 1 min = 60 s
Change in temperature (ΔT) = 3.54 K
Mass of methanol (m) = 1 kg
Molar mass of methanol (M) = 32 g/mol

We know that,
Power (P) = energy/time
So, energy (Q) supplied by the heater in 1 minute can be calculated as:
Q = P × t
= 150 W × 60 s
= 9000 J

Using the formula mentioned above, we can calculate the molar heat capacity as:
Cp = Q/mΔT
= (9000 J) / (1 kg × 3.54 K)
= 2540.11 J/mol K

Answer

Therefore, the molar heat capacity of methanol is 2540.11 J/mol K.
Community Answer
A 150 W heater was placed in 1 kg of methanol and turned on exactly fo...
49.4
Explore Courses for JEE exam

Similar JEE Doubts

A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is?
Question Description
A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is?.
Solutions for A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is? defined & explained in the simplest way possible. Besides giving the explanation of A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is?, a detailed solution for A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is? has been provided alongside types of A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is? theory, EduRev gives you an ample number of questions to practice A 150 W heater was placed in 1 kg of methanol and turned on exactly for 1 minute. The temperature increased by 3.54 K. Assuming that all the heat is absorbed by methanol, the molar heat capacity of methanol is? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

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