2a mass of 15 kg of air in a piston–cylinder device is heated from 25 to 95°c by passing current through a resistance heater inside the cylinder. the pressure inside the cylinder is held constant at 300 kpa during the process, and a heat loss of 60 kj occurs. determine the electric energy supplied, in kwh

0.2338KWh

Explanation:

Given

mass of air=15kg

Initial Temperature

Final Temperature

pressure is constant 300 KPa

heat loss =60 KJ

Enthalpy at

Enthalpy at

and for 15 kg air

Thererfore net heat input=

                                          =784.35+60=844.35KJ

                                          =

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

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explanation:

answer is slate

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