Biology 9700 · AS & A Level · Water

Water — practice question

A student listed four statements about water. 1 Water has a high specific heat capacity, so it keeps the temperature of water inside cells stable. 2 Mammals depend on water having a relatively low latent heat of vaporisation in order to stay cool. 3 If a negatively charged ion is added to water, the $\delta^+$ charge on the hydrogen atom is attracted towards the ion. 4 When non-polar molecules are surrounded by water, they tend to be forced apart from each other. Which of these statements are correct?

  • A1 correct, 2 not correct, 3 correct, 4 correct
  • B1 correct, 2 not correct, 3 correct, 4 not correct
  • C1 not correct, 2 correct, 3 not correct, 4 correct
  • D1 not correct, 2 correct, 3 not correct, 4 not correct

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