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If 294 joules of heat energy is required...

If 294 joules of heat energy is required to raise the temperature of 2 moles of an ideal gas from `30^(@)C` to `35^(@)C` at constant pressure, then the specific heat at constant pressure will be (R=8.4J/mol `.^(@)K`)

A

27.4 J/mol K

B

28.4 J/mol K

C

29.4 J/mol K

D

30.4 J/mol K

Text Solution

Verified by Experts

The correct Answer is:
C
`dQ_(p)=nC_(p)dT`
`therefore C_(p)=(dQ_(p))/(ndT)=(294)/(2xx5)=29.4`
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