Answer:
The given statement is false.
Explanation:
Displacement is a vector quantity which represent shortest distance form initial position to final position.
Velocity of an object is defined as ratio of displacement of object to that of the time taken by object to move from its initial position to final position.
In displacement vs time graph the slope of the graph represent the velocity. Whereas slope of velocity vs time graph gives acceleration.
As you go deeper into, the pressure rises. Density is defined as mass/volume. Because of pressure, the layers beneath us become densely packed.
Answer:
d per the definition......
Answer:
The 150 g Al will reach a higher temperature.
Explanation:
- The amount of heat added to a substance (Q) can be calculated from the relation:
Q = m.c.ΔT.
where, Q is the amount of heat added,
m is the mass of the substance,
c is the specific heat of the substance,
ΔT is the temperature difference (final T - initial T).
<em>Since, Q and c is constant, ΔT will depend only on the mass of the substance (m).</em>
∵ ΔT is inversely proportional to the mass of the substance.
∴ The piece with the lowest mass (150.0 g) will reach a higher temperature than that of a higher mass (250.0 g).
<em>So, the right choice is</em>: The 150 g Al will reach a higher temperature.
The correct answer is 8.89 g.
The production of MgNH₄PO₄.6H₂O is given by the equation:
NH₃ + H₃PO₄ ⇒ (NH₄)H₂PO₄
(NH₄)H₂PO₄ + MgSO₄ + 6H₂O ⇒ MgNH₄PO₄.6H₂O + H₂SO₄
This is the real fertilizer of NPK of weight 3 g.
It is given that the NPK is present in the ratio of 15-15-10.
Therefore, the moles of phosphorus found in the actual fertilizer is as follows:
% of P present as P₂O₅ in the fertilizer is (15/40) × 100 = 37.5 %
% of P = mass of P / actual mass of fertilizer
0.375 × 3 = mass of P
Mass of P = 1.125 g / 31
Moles of P = 0.03629 mol
On the basis of reaction stoichiometry,
1 mol of P in the actual fertilizer = 1 mol of P in the product
0.03629 of P
Moles of MgNH₄PO₄.6H₂O = 0.03629 mol
Mass of MgNH₄PO₄.6H₂O formed = 0.03629 mol × 245.1 g/mol
= 8.89 g
Thus, the mass of the product MgNH₄PO₄.6H₂O formed is 8.89 g.
