What is the amount of heat released when 0.8 kg of water at 25°C cools until it becomes ice at -6°C? State the assumptions you make in your calculations. [Specific heat capacity of water, Cwater = 4.2 x 10' J kg °C specific heat capacity of ice, Cice = 2.0 x 10' J kg-1 °C- and specific latent heat of fusion of ice, l = 3.34 x 10 J kg )​

number of electrons for neutral cl

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards