How much of an impact has a temperature difference when the specific weight of an object in water is measured, e.g. the weight of a mussel in seawater. Would the two scenarios yield the same specific weight and if not is there a way to correct the specific weight for the temperature difference?

  1. Seawater 11 degree Celsius and mussel 11 degree Celsius
  2. Seawater 21 degree Celsius and mussel 11 degree Celsius

Assuming the temperature of the mussel has not changed during the course of the measurement, obviously not. You have to correct for the variation of the density of seawater.

| cite | improve this answer | |
  • $\begingroup$ Thank you for your answer Dr S T Lakshmikumar. Would the specific weight stay constant if the temperatures of the water and the mussel change at the same rate, so that the temperature difference stayed the same e.g. 10 - 15 and 15 - 20 degree Celsius)? $\endgroup$ – Globoquadrina Jan 5 '19 at 17:07
  • $\begingroup$ Not likely. You would need the changes in densities of sea water and the mussel to match and there is no physical reason why they should $\endgroup$ – Dr S T Lakshmikumar Jan 7 '19 at 10:36

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.