Question

A student tested the solubilities of four substances W, X, Y and Z at different temperatures and found
grams of each substance dissolved in 100 g of water to form a saturated solution.
{Refer the table above and ans}
(a)
Which salt is least soluble at 343 K?
(b)
Which substance shows least change in its solubility when the temperature is raised?
student prepared a solution of Zat 329 K and heated it to 353K. The student then added
more amount of the salt to make it a saturated solution at 353K. What would the student
observe as the solution cools at room temperature? Explain.
What mass of W would be needed to make a saturated solution in 50 g of water at 353 K?​

Answer 1

Answer:

Firstly, Diesel Direct Injection (DI) is a basic type of fuel injection system which many earlier generation diesel engines used. The simple DI diesel engines inject the fuel into the combustion chamber above the piston directly.

Answer 2

Explanation:

When you have tested the charging system of a car fitted with an alternator , and the checks in How to test a car battery point to a fault in the voltage regulator , make sure that you need to replace it. The fault may be elsewhere.

If the simple tests described here do not work, take the car to an auto-electrician; alternators fitted to modern cars are easily damaged.

Before doing any work on an alternator system other than testing, disconnect both terminals of the battery .