Question

what are the main formulas in heat topic

Answer 1

temperature in celcius scale / 5= (temperature in fahrenheit scale - 32 )/9

temperature in fahrenheit scale = [(temperature in celcius scale *9)/5-32)]

temperature in kelvin scale = temperature in celcius scale + 273

Answer 2

ΔE = Ef - Ei........... tat is its a state function
ΔE = q+w
And the sign conventions.. when heat is liberated it is -ve and vice versa