`40^(@)C` থেকে `100^(@)C` এ `40 গ্রাম` আর্গন গরম করতে কত ক্যালোরির প্রয়োজন

40 g of Argon is heated from 40^(@)C to 100^(@)C (R=2 cal//mol.) What is the heat absorbed at the constant volume by the Argon?

How many calories are required to heat 40 g of argon from 40^(@)C to 100^(@)C at constant volume? (R = 2 cal mol^(-1) K^(-1))

-40^(@)C is numerically equal to

A body takes 4 minutes to cool from 100^(@)C to 70^(@)C . To cool from 70^(@)C to 40^(@)C it will take (room temperture os 15^(@)C )

A calorimeter of heat capacity 100 J//K is at room temperature of 30^(@)C . 100g of water at 40^(@)C of specific heat 4200 J//kg-K is poured into the calorimeter. What is the temperature of water is calorimeter?

A body cools from 50^(@)C to 46^(@)C in 5 min and to 40^(@)C in the next 10 min. then the temperature of the surrounding is