2.22 The graph shows the heat capacity at constant pressure of a common gas.

(a) Identify the modes of energy storage represented by the numbered zones.

(b) State reasons for rejecting or accepting each of the following gases as the one in the graph: Ar; 02; H20; C02.

T, K

2.23 The following data for liquid water are taken from table A.4.

Specific Volume, m3/kg x 103

T, °C v (at 20 M Pa) v (at 30 M Pa) v <at 40 M Pa)

Getting Started With Solar

Getting Started With Solar

Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.

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