Question

Please, can you give me you feedback on the following steps?

In order to investigate how salt concentration will affect the specific heat capacity I elaborated the following experiment.

I measured the amount of water and I record the initial temperature. I take an amount x  of salt and blend it in the water. I heat the water for 2 minutes and then I measure the final temperature. I do it for the water with salt and without salt. Then I repeat the steps 3 types with 2 different amounts of salt.

1. Should I have more trials? Is my methodology good?

I will use the following equation

2. Can I say that the energy provided by the kettle is equal to the Q of the equation above?

3. After calculating the specific heat. Now I have all the data. How can I calculate the uncertainty?

Answer 1

Answer :-

The future of the Dutch peat - and ponderland :-

1. Soil subsidence will become an important issue in Dutch peat lands.

2. The future of the agriculture of Dutch peat lands is unpredictable due to this soil subsidence.

3. The transition of energy has become both a transition and threat

4. More peat land restoration projects will be taken by Dutch government.

5. Due to global warming, sea level may rise and may bring storm surges which may cause floods in the Dutch polderlands.

6. The subsidence of river deltas are tending to occur in Dutch polderlands.

The factor of influence for the river course are as follows :-

1. Climate is a prime factor which affects the river course. The behaviour of river course varies with different weather conditions.

2. Flow velocity also influences the river course.