Question

Temperature of 50g of methanol from 20 degrees Celsius to 70 degrees Celsius

Answer 1

[ Q ] = [ Delta U ] + [ W sub B ]

No work is done. -----> [ W sub B ] = 0.0

[ Delta U ] = [ m ] [ C sub V ] [ T2 - T1 ]

[ Delta U ] = [ 50 ] [ 0.58 ][70 - 20 ]

[ Delta U ] = 58 cal

Q = [ Delta U ] = 58cal