Steam (water vapor) at 100 degrees celsius is added to a thermally insulated container with 200 kg of ice at zero degrees celsius. the final mixture is water at 30 degrees celsius. what was the initial mass of the steam?

Answer : The initial mass of the steam is 94.42 kg.

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

where,

= specific heat of water vapor =

= specific heat of solid water =

= mass of steam = ?

= mass of solid water = 200 kg = 200000 g

= final temperature of water =

= initial temperature of water vapor =

= initial temperature of solid water =

Now put all the given values in the above formula, we get

Therefore, the initial mass of the steam is 94.42 kg.

answer; equivalent to a one(1) horsepower motor;

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table