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An ideal gas has molar specific heat 5R/2 at constant pressure. If 300 J of heat is given to two moles of gas at constant pressure, the change in temperature is:

a
7.22°C
b
8.94°C
c
zero
d
5°C

detailed solution

Correct option is A

Q=nCP∆T=QnCP=3002×5R2=60R=7.22oC

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Similar Questions

Consider the following statements.
(A) When a hot liquid is mixed with a cold liquid, the temperature of the mixer is undefined for some time and then becomes nearly constant.
(B) If two bodies at different temperature are mixed in a calorimeter, the total energy of the two bodies remains conserved.
Select the correct option.
(a) (A) is false but (B) is true.
(b) Both (A) and (B) are true.
(c) (A) is true but (B) is false.
(d) Both (A) and (B) are false.
 


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