| Date | May 2009 | Marks available | 1 | Reference code | 09M.1.HL.TZ1.11 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 11 | Adapted from | N/A |
Question
A positive amount of thermal energy \(Q\) is transferred to an ideal gas from its surroundings. The internal energy of the gas increases and the gas does a positive amount of work \(W\) on its surroundings. The change of state of the gas is
A. isochoric (isovolumetic).
B. isobaric.
C. isothermal.
D. adiabatic.
Markscheme
B
Examiners report
[N/A]
Syllabus sections
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