1kcal =4.18 joules.

The calorie is defined as 1 cal= 4.86 joule Why as 1 cal= 4J to make the conversions easy?

A system is given 300 calories of heat and it does 600 joules of work. How much does the internal energy of the system change in this process (J=4.18 "joules"//cal)

A system is given 300 calories of heat and it does 600 joules of work. How much does the internal energy of the system change in this process (j=4.18joules/cal)

The total energy of a harmonic oscillator of mass 4 kg is 18 Joules. If its energy at rest is 10 Joules then its K. E. at the mean position will be

When q_(1) joules of radiation is incident on a body if reflects and transmits total of q_(2) joules. Find the emissivity of the body.

1 joule equals