Heat transfers more slowly when the mass of an object is a) small b) large c) zero

The answer is B) large

If water molecule has a linear shape then IT WOULD BE A NON POLAR MOLECULE. All the special properties of water is as a result of its polarity, which is due to its bent structure. If the molecules of water are arranged in a linear fashion, water molecule will not be polar again and this will result in changes to its properties.