Part A Use the pump handle to add some gas molecules to the container. The amount is up to you. Change the volume of the
box, and heat or cool it as you like. If you accidentally blow the lid off, click the Return Lid button. In the data table, recor
the pressure (P), length (Y), number of gas molecules (n), and temperature (1). Then click the reset button, change all of
the variables, and again record the measurements. Repeat this process until you have five sets of measurements.
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U
x
x х
Font Sizes
AA-EE
P (atm)
V (nm)
n (particles)
T(K)
Trial 1
Trial 2
Trial 3
Trial 4
Trial 5

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.