The amount of heat energy required to raise the temperature of 1g of h...
Introduction:
The amount of heat energy required to raise the temperature of a substance can be calculated using the specific heat capacity formula. In the case of helium at NTP (Normal Temperature and Pressure), we will calculate the heat energy required to raise the temperature from T1 to T2.
Specific heat capacity:
The specific heat capacity (C) of a substance is defined as the amount of heat energy required to raise the temperature of 1 gram of the substance by 1 degree Celsius. It is usually measured in joules per gram per degree Celsius (J/g°C).
Formula:
The formula to calculate the heat energy (Q) required is:
Q = m * C * ΔT
Where:
Q = Heat energy (in joules)
m = Mass of the substance (in grams)
C = Specific heat capacity (in J/g°C)
ΔT = Change in temperature (in degrees Celsius)
Calculating the heat energy:
To calculate the heat energy required to raise the temperature of 1 gram of helium at NTP from T1 to T2, we need to know the specific heat capacity of helium.
Specific heat capacity of helium:
The specific heat capacity of helium is approximately 5.193 J/g°C.
Calculating ΔT:
ΔT is the change in temperature and can be calculated as:
ΔT = T2 - T1
Substituting values:
Now, let's substitute the values into the formula to calculate the heat energy required:
Q = 1g * 5.193 J/g°C * (T2 - T1)
Simplifying the equation:
The final equation to calculate the heat energy required is:
Q = 5.193 J/g°C * (T2 - T1)
Conclusion:
In conclusion, to calculate the amount of heat energy required to raise the temperature of 1 gram of helium at NTP from T1 to T2, we use the formula Q = 5.193 J/g°C * (T2 - T1). By substituting the values of T2 and T1, we can determine the heat energy required.
The amount of heat energy required to raise the temperature of 1g of h...
Q=nCvdT put n= 1/4 and Cv= 3R/2 and R= N×b then u got right ans.
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.