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

1 kcal = 4180 cal

1 calorie =………….. joule.

1 calorie is _____ Joules.

true or false: 1J = 4.18 cal

1 calorie = …… J and 1 kilo-calorie= ……….J

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)

How many joules are there in 1 calories?