10.0 J of energy is required to increase the temperature of 1 g of water by 10oC. What is this value in calories? In kcal?

10 J = 2.39 cal = 2.39 x 10⁻³ kcal

The joule is one unit of energy. energy itself can be expressed in units such as calories, BTU, kg⋅m²s⁻²

An example of energy calculation is the calculation of heat in heat transfer

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

10 J if we convert into calories and kcal

може ли да зареждате повече информация, моля

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole