6 Answer true or false. (a) For a sample of gas at constant temperature, its pressure multiplied by its volume is a constant. (b) For a sample of gas at constant temperature, in-
6 Answer true or false. (a) For a sample of gas at constant temperature, its pressure multiplied by its volume is a constant. (b) For a sample of gas at constant temperature, in-
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Transcribed Image Text:6 Answer true or false.
(a) For a sample of gas at constant temperature, its
pressure multiplied by its volume is a constant.
(b) For a sample of gas at constant temperature, in-
creasing the pressure increases the volume.
(c) For a sample of gas at constant temperature,
P,/V, = P,/V,.
(d) As a gas expands at constant temperature, its
volume increases.
(e) The volume of a sample of gas at constant
pressure is directly proportional to its
temperature-the higher its temperature, the
greater its volume.
(f) A hot-air balloon rises because hot air is less
dense than cooler air.
(g) For a gas sample in a container of fixed volume,
an increase in temperature results in an increase
in pressure.
(h) For a gas sample in a container of fixed volume,
PX T is a constant.
(i) When steam at 100°C in an autoclave is heated
to 120°C, the pressure within the autoclave
reases.
(j) When a gas sample in a flexible container at
constant pressure at 25°C is heated to 50°C, its
volume doubles.
(k) Lowering the diaphragm causes the chest cavity
to increase in volume and the pressure of air in
the lungs to decrease.
(1) Raising the diaphragm decreases the volume of
the chest cavity and forces air out of the lungs.
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