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Grade: 11
        
1/2 mole on helium gas is contained in a container at STP. The heat energy needed in cal to double the pressure of the gas keeping the volume constant 
 
8 months ago

Answers : (1)

Khimraj
3008 Points
							
P2 = 2P, n = ½ 
P1 = P, T1 = 273K
using
P2/T2 = P1/T1
2P/T2 = P/273
T2 = 546K
T2 – T= 273K
dQ = nCvdT
= ½*4*3*273 = 1638J
Hope it clears.
8 months ago
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