certain lightbulb containing argon at 1.20 atm and 18 0 C is heated to 85 0 C at constant volume. What is the final pressure of argon in the lightbulb (in atm)? P 1 T 1 P 2 T 2 ... Ideal Gas Equation 5.4 Charles' law: V T (at constant n and P ) ... Consider a case in which two gases, A and B , are in a container of volume V.
(compare and contrast) (physical and chemical changes are similar because matter experiences a change in state, physical changes are different because matter remains the same substance, just in a different state, whereas chemical changes change the matter forever).
(d) liquid is being formed.
the enthalpy of fusion of a substance (–hfus) is the change in its enthalpy when the substance changes its state from a solid to a liquid. it happens when heat is supplied to some quantity of substance which is originally in solid state & it turns into liquid.
example- melting of ice.
to melt ice energy is required. approximately, 333 kj of energy is needed to heat 1 kg ice to convert into liquid.