What mass of water is required to absorb 4.7 x 10^5 of energy from a car engine while the temperature was initially 25 what will be the new temperature

The mass of water required is, m = 1.492 Kg

The final temperature of water, = 100 °C

Explanation:

Given that

Energy absorbed by water, q = 4.5 x 10⁵ J

The initial temperature of water = 25 °C

The mass of water required to absorb the energy, m = ?

The final temperature of water, = ?

The formula for energy absorbed by the water,  

                                   q = m C ΔT   Joules

where,  

                                   C - specific heat capacity (4200 J/Kg °C)

                                    ΔT = - (change in temperature)

The maximum possible temperature of the water at Standard Temperature and Pressure is 100 °C

As the final temperature is not given, let us consider the maximum possible temperature of the water.

Therefore,  

                                    ΔT = -

                                           = 100 -25

                                           = 75 °C

To find the mass of water, from the above relation

                                        m = q/CΔT        Kg

Substituting the values in the above equation

                                        m = 4.5 x 10⁵/4200 x 75

                                        m = 1.492 Kg

Hence, the mass of water required is m = 1.492 Kg

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation: