Q.1 The latent heat of vaporisation of steam r is given in the following table of different temperature t: T 40 80 50 60 70 90 100 110 : r 106 106 105 105 104 104 103 103 9.1 3.6 8.2 2.7 9.3 1.8 6.3 0.8 : For the range of temperature, a relation of the form r=a+bT is known to fit data find the values of a and b. Hence find latent heat when T=120. only types answer please

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