A definite quantity of water and coconut oil are heated in separate test tubes using the same amount of heat.
a. In which case does the temperature increase slowly? b. What is the reason for this? c. Write any one practical application of this property.

A definite quantity of water and coconut oil are heated in separate test tubes using the same amount of heat. In which case does the temperature increase slowly?

Take hot water and cold water in two test tubes. Add one drop of phenolphthalein to both of the test tubes. Then add magnesium ribbon of the same size to this test tubes. a) Which test tubes shows the sudden formation of pink colour? b) What is the reason for the sudden formation of pink colour? c) Which gas is formed? d) Write the equation for the chemical reaction.

Which of the following statement is incorrect about internal energy? a) The absolute value of internal energy cannot be determined b) The internal energy of one mole of a substance is same at any temperature or pressure c) The measurement of heat change during a reaction by bomb calorimeter is equal to the internal energy change d) Internal energy is an extensive property

H_(2)(g)+I_(2)harr2HI+Heat answer the following questions related to the given system at equlibrium. a) The rate of which reactions increases when the concentration of I_(2) is increased? b) What is the influence of pressure on this system? c) HI must be kept at low temperature to prevent its decomposition. Give reason.

Some information regardirg a particular, compound is given below. i) A deep.purple black crystal which' is moderately soluble in water at room temperature and it is prepared from pyrolusite a) İdentify the compound b) Give the chemical reactions involved in the preparation of,this compound - c) Upon heating to 746 K, what happens to this compound? Give the equation