The Triple Point of H₂O Is at 4

question 11

Multiple Choice

The triple point of H₂O is at 4.58 mmHg and +0.01 °C.Some H₂O at -50 °C is heated to 120 °C at a constant pressure of 0.5 atm.The changes of state occurring in this process are:

• A)solid to gas
• B)solid to liquid to gas
• C)liquid to gas
• D)solid to liquid
• E)gas to liquid to solid

---

Definitions:

Hypothesis Test

A method in statistics used to determine whether there is enough evidence in a sample of data to infer that a certain condition holds true for the entire population.

Average Final Exam Score

The mean score of students' final exams, providing a measure of performance at the end of a course.

Degrees of Freedom

The number of independent pieces of information used in the calculation of a statistic, often impacting the critical values in hypothesis testing.

Two Tailed Test

A statistical test that evaluates the possibility of a relationship in both directions, allowing for the rejection of a null hypothesis for extreme values at either end of the probability distribution.