If 2 kcal, of heat is supplied to a system cause to change the internal energy of a gas is 5030 J, and external work done is 3350 J, then what is mech

Question

If 2 kcal, of heat is supplied to a system cause to change the internal energy of a gas is 5030 J, and external work done is 3350 J, then what is mech

If 2 kcal, of heat is supplied to a system cause to change the internal energy of a gas is 5030 J, and external work done is 3350 J, then what is mechanical equivalent of heat?
A. 41.90 J/kcal
B. 4190 J/cal
C. 4.19 J/kcal
D. 4.19 J/cal

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
`dQ=2kcal,du=5030J,dw=3350J,J=?`
`dQ=du+dw`
`JdQ=5030+3350`
`J=(8380)/(2)`
`J=4190J//kcal`.
`J=4.190J//cal`.

5 views Answered 2023-02-05 15:29